1. On March 9, 1916, the Utah State Capitol building was dedicated. The building had been under construction for 12 years and cost $2.5 million to complete. It was designed by architect Richard K.A. Kletting and features a neoclassical style.

2. March 9, 1855, marks the official establishment of Brigham Young University. The school was originally named Brigham Young Academy and was located in Provo, Utah. Today, BYU is a private research university and is one of the largest religious universities in the United States.

3. The Utah War, a conflict between Mormon settlers and the U.S. government, officially ended on March 9, 1858, with the signing of the Treaty of Traverse des Sioux. This treaty allowed the Mormons to keep their land and property in Utah and signaled the beginning of a period of relative peace and prosperity for the region.

4. In 1936, the State of Utah purchased a section of land in Tooele County with the intention of using it as a prison. On March 9 of that year, the State Industrial School for Boys was opened on the property. The facility later became known as the Utah State Training School and operated until the late 1980s.

5. On March 9, 1869, the Transcontinental Railroad was completed with the driving of the golden spike in Promontory, Utah. This event marked the first time that the East and West coasts of the United States were connected by rail, greatly reducing travel time and boosting economic growth in the country. The golden spike is now on display at the Golden Spike National Historical Park in Box Elder County, Utah.